December 3, 2015: Conceptual design is complete for nearly 70 miles (112km) of bored tunnels that form the Phase 1 California Water Fix of the planned $14.9 billion California Bay Delta Water Conveyance Project to transfer fresh water from the Sacramento River under the delta to pump stations in the south for onward transportation via existing conveyance infrastructure to the populations of central and southern California.

The Design and Construction Enterprise, a new entity created by the California Department of Water Resources, will be advancing further design and construction work packages for the California Water Fix program once the environmental assessment process for the program is completed in mid-2016.

A six-year tunnel construction phase, split across a proposed six construction packages, is scheduled to begin in 2019.